'use strict'
const path = require('path')

function resolve(dir) {
  return path.join(__dirname, dir)
}

const CompressionPlugin = require('compression-webpack-plugin')

const name = process.env.NAME_ENV.replace(/development/, "") || process.env.VUE_APP_TITLE

const port = process.env.port || process.env.npm_config_port || 80 // 端口

let styleVariable = require('./components/assets/styles/variables')
// vue.config.js 配置说明
//官方vue.config.js 参考文档 https://cli.vuejs.org/zh/config/#css-loaderoptions
// 这里只列一部分，具体配置参考文档
const GetPagesBuild = (pagesObj) => {
  return {
    [name]: {
      entry: './src/' + name + '/main.js',
      template: './src/' + name + '/public/index.html',
      title: pagesObj[name],
      chunks: ['chunk-vendors', 'chunk-common', 'chunk-elementUI', 'runtime', name]
    }
  }
}

const GetAlias = () => {
  let param = {
    '@': resolve('src/' + name),
    '@Components': resolve('components/'),
    '@/utils': resolve('src/admin/utils'),
  }
  switch (name) {
    case 'admin':
      param = Object.assign(param, {
        '@Form': resolve('src/form/'),
        '@Bpmn': resolve('src/bpmn/')
      })
      break;
    case 'form':
      param = Object.assign(param, {
        '@Form': resolve('src/form/'),
      })
      break;
    case 'bpmn':
      param = Object.assign(param, {
        '@Bpmn': resolve('src/bpmn/'),
      })
      break;
  }
  return param
}

module.exports = {
  pages: GetPagesBuild({ admin: '工作流管理系统', form: '动态表单', bpmn: '工作流引擎' }),
  // 部署生产环境和开发环境下的URL。
  // 默认情况下，Vue CLI 会假设你的应用是被部署在一个域名的根路径上
  // 例如 https://www.ruoyi.vip/。如果应用被部署在一个子路径上，你就需要用这个选项指定这个子路径。例如，如果你的应用被部署在 https://www.ruoyi.vip/admin/，则设置 baseUrl 为 /admin/。
  publicPath: /development/.test(process.env.NODE_ENV) ? "/" : "/" + name + "/",
  // 在npm run build 或 yarn build 时 ，生成文件的目录名称（要和baseUrl的生产环境路径一致）（默认dist）
  outputDir: 'dist' + name,
  // 用于放置生成的静态资源 (js、css、img、fonts) 的；（项目打包之后，静态资源会放在这个文件夹下）
  assetsDir: 'static',
  // 是否开启eslint保存检测，有效值：ture | false | 'error'
  lintOnSave: /development/.test(process.env.NODE_ENV),
  // 如果你不需要生产环境的 source map，可以将其设置为 false 以加速生产环境构建。
  productionSourceMap: false,
  // webpack-dev-server 相关配置
  devServer: {
    host: '0.0.0.0',
    port: port,
    /**
     * webpack4 打开指定页面是openPage:xxx
     * webpack5 打开指定页面是open:['xxx']
    */
    open: true,
    openPage: name,
    proxy: {
      [process.env.VUE_APP_BASE_API]: {
        target: `http://127.0.0.1:8081/`,
        changeOrigin: true,
        pathRewrite: {
          ['^' + process.env.VUE_APP_BASE_API]: ''
        }
      }
    },
    disableHostCheck: true
  },
  css: {
    loaderOptions: {
      scss: {
        // JS 和 scss 共享变量
        prependData: Object.keys(styleVariable)
          .map(key => `\$${key}: ${styleVariable[key]};`)
          .concat(['@import "./src/form/styles/global.scss";'])
          .join('\n'),
      }
    }
  },
  configureWebpack: {
    name: name,
    resolve: {
      alias: GetAlias()
    },
    plugins: [
      // new CompressionPlugin({
      //   test: /\.(js|css|html)?$/i,     // 压缩文件格式
      //   filename: '[path].gz[query]',   // 压缩后的文件名
      //   algorithm: 'gzip',              // 使用gzip压缩
      //   minRatio: 0.8                   // 压缩率小于1才会压缩
      // })
    ],
  },
  chainWebpack(config) {
    config.plugins.delete('preload') // TODO: need test
    config.plugins.delete('prefetch') // TODO: need test

    config.when(name === 'admin', config => {
      // set svg-sprite-loader
      config.module
        .rule('svg')
        .exclude.add(resolve('src/admin/assets/icons'))
        .end()
      config.module
        .rule('icons')
        .test(/\.svg$/)
        .include.add(resolve('src/admin/assets/icons'))
        .end()
        .use('svg-sprite-loader')
        .loader('svg-sprite-loader')
        .options({
          symbolId: 'icon-[name]'
        })
        .end()
    })

    config.module
      .rule('svg')
      .exclude.add(resolve('src/form/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/form/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })

    config
      .when(process.env.NODE_ENV !== 'development',
        config => {
          config
            .optimization.splitChunks({
              chunks: 'all',
              cacheGroups: {
                elementUI: {
                  name: 'chunk-elementUI', // split elementUI into a single package
                  priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
                  test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
                },
                vendors: {
                  name: 'chunk-vendors',
                  test: /[\/]node_modules[\/]/,
                  minChunks: 2, // 添加被引用次数
                  priority: 5,
                  chunks: 'initial'
                },
                commons: {
                  name: 'chunk-commons',
                  test: resolve('src/' + name + '/components'),
                  minChunks: 2,
                  priority: 10,
                  reuseExistingChunk: true
                },
                components: {
                  name: 'chunk-components',
                  test: resolve('components/'),
                  minChunks: 2,
                  priority: 10,
                  reuseExistingChunk: true
                }
              }
            })
          config.optimization.runtimeChunk('single'),
          {
            from: path.resolve(__dirname, './src/' + name + '/public/robots.txt'), //防爬虫文件
            to: './' //到根目录下
          }
        }
      )
  }
}
